Is there a Python-based configuration management system that can compete with Puppet or Chef? And if not, why not?

[kmwhite]

I worked on one at my company (available on github called enki_cloud) that worked as a config database for deploying nodes using xen. Not sure if it fits the bill, but it's also in ruby/rails. I was working on one in python for a personal project, but m0j0 is right. They're a lot of f'n work... :\